Customs duties form a significant source of revenue for India. The principle statute under which they are imposed is the Customs Act, 1962.
Duties of custom are levied under section 12 of the Act on goods imported into or exported from India. The rates of duty are specified under the Customs Tariff Act, 1975 or under any other law for the time being in force. For instance, special duties of customs may be levied under Finance Acts.